Watcharasresomroeng, B., C. Khunead, P. Kanjanakarn, and S. Kumjing. “V-bending of Sheet Metal with a Polymer Die by Selective Laser Sintering Technology”. Journal of Manufacturing & Management Technology, vol. 1, no. 1, June 2022, pp. 70-77, https://ph01.tci-thaijo.org/index.php/jMMT/article/view/248830.